/**
 *   DataSlim - Lazy Loading Framework
 *   Copyright (C) 2007 Rodolfo Dias
 *   
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License along
 *   with this program; if not, write to the Free Software Foundation, Inc.,
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * 
 */

package net.dataslim.processor;


import java.util.Collection;

import com.sun.mirror.apt.AnnotationProcessor;
import com.sun.mirror.apt.AnnotationProcessorEnvironment;
import com.sun.mirror.declaration.AnnotationMirror;
import com.sun.mirror.declaration.AnnotationTypeDeclaration;
import com.sun.mirror.declaration.Declaration;
import com.sun.mirror.declaration.TypeDeclaration;
import com.sun.mirror.util.DeclarationVisitor;
import com.sun.mirror.util.DeclarationVisitors;

public class DataSlimAnnotationProcessor  implements AnnotationProcessor{

		private AnnotationProcessorEnvironment environment;
		private TypeDeclaration dataSlimDeclaration;
		private Collection<Declaration> declarations = null;
		
		public DataSlimAnnotationProcessor(AnnotationProcessorEnvironment env){
			environment = env;
			dataSlimDeclaration = environment
			  .getTypeDeclaration("net.dataslim.annotations.DataSlim");
			declarations = environment
			  .getDeclarationsAnnotatedWith((AnnotationTypeDeclaration)dataSlimDeclaration);
		}
		
		public void process(){
			for( Declaration declaration : declarations ){
				selectVisitor(declaration);
			}
		}
				
		private void selectVisitor(Declaration declaration){
			Collection<AnnotationMirror> annotations = 
				declaration.getAnnotationMirrors();
			for(AnnotationMirror mirror : annotations){
				DeclarationVisitor scanner;	
				if (mirror.getAnnotationType().getDeclaration().equals(dataSlimDeclaration)){
					scanner = DeclarationVisitors.
						getDeclarationScanner(
								new DataSlimVisitor(environment), 
								DeclarationVisitors.NO_OP);
					declaration.accept(scanner);
				}
			}
		}
} 
